The :only-of-type
CSS pseudo-class represents an element that has no siblings of the same type.
/* Selects each <p>, but only if it is the */ /* only <p> element inside its parent */ p:only-of-type { background-color: lime; }
Note: As originally defined, the selected element had to have a parent. Beginning with Selectors Level 4, this is no longer required.
:only-of-type
<main> <div>I am `div` #1.</div> <p>I am the only `p` among my siblings.</p> <div>I am `div` #2.</div> <div>I am `div` #3. <i>I am the only `i` child.</i> <em>I am `em` #1.</em> <em>I am `em` #2.</em> </div> </main>
main :only-of-type { color: red; }
Specification | Status | Comment |
---|---|---|
Selectors Level 4 The definition of ':only-of-type' in that specification. | Working Draft | Matching elements are not required to have a parent. |
Selectors Level 3 The definition of ':only-of-type' in that specification. | Recommendation | Initial definition. |
Desktop | ||||||
---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
Basic support | 1 | Yes | 3.5 | 9 | 9.5 | 3.2 |
Mobile | |||||||
---|---|---|---|---|---|---|---|
Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
Basic support | 2 | ? | Yes | 4 | 10 | 3.2 | ? |
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/CSS/:only-of-type